JP2003038699A - Swing practicing equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a swing practice equipment which enable a user to surely and easily master not only a desirable golf swing but a desirable bat swing of baseball and softball common to the golf swing. SOLUTION: This swing practice equipment has a grip 10, a shaft 20 and a head 30 and is used for practicing the swing in the golf, baseball and softball. A hollow section 31 is formed within the head 30 and liquid, such as water, or particulate solid of a sandy or small granular form is put in a half filled state into this hollow section 31.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a swing training tool for practicing a golf swing or a baseball swing.

[0002]

2. Description of the Related Art US Pat. No. 4,614,343 discloses a golf swing practice tool in which a grip portion and a shaft portion are made in the same manner as a golf club, and the head portion is different from the head portion of the golf club. The practice tool that has been disclosed is disclosed. In this practice tool, something like a metal rod called a click finger is placed in a locked state in the head part, and when the centrifugal force of the swing exceeds a certain level, the lock is automatically released and the click finger falls. However, it is configured to emit a click sound.

[0003]

However, in the golf swing practice tool according to the above-mentioned US patent, even if the golf swing is not a preferable swing, when the centrifugal force of the club at the time of swing exceeds a certain level, the lock is unlocked and a sound is produced. However, it was not always possible to exert a sufficient effect on the correction and correction of the swing.

Therefore, the present invention solves the above-mentioned drawbacks of the conventional golf swing practice tool, and not only a preferable golf swing but also a preferable bat swing of baseball or softball which is common to golf swings can be surely and easily learned. The challenge is to provide a swing training tool that can be attached to.

[0005]

In order to solve the above problems, a swing training device of the present invention has a grip portion, a shaft portion and a head portion, and is a swing training device for practicing swings in golf, baseball and softball. The first feature is that a hollow portion is formed inside the head portion, and a liquid such as water or a sand-like or small granular particulate solid is put in the hollow portion in a semi-filled state. . Further, in addition to the first feature, the swing training tool of the present invention is formed as a golf club as a whole for golf swing, and a liquid such as water or the like is formed in a hollow portion formed inside the head of the golf club. The second feature is that the sand-like or small granular solid particles are put in a semi-satisfied state. Further, in addition to the first feature, the swing training tool of the present invention is entirely formed like a baseball or softball bat for a bat swing, and has a water-filled hollow portion formed in the vicinity of the head of the bat. The third feature is that a liquid such as the above or a sand-like or small granular particulate solid is put in a semi-sufficient state. In addition, the swing training tool of the present invention is configured as a tubular shape or a ring shape as a whole so as to be detachably fitted to a bat or a golf club at a center hole portion thereof, and the tubular shape or ring-shaped main body. The fourth feature is that a hollow portion is formed in the interior of the container and a liquid such as water or a sandy or small granular particulate solid is filled in the hollow portion in a partially filled state. The swing training tool of the present invention has a grip portion, a shaft portion, and a head portion, and is a swing training tool for practicing swings in golf, baseball, and softball, and the grip portion and the head portion are struck by airflow. A whistle is provided, and the whistle of the grip part is struck by the airflow generated when the grip part is moved down vigorously by the downswing, and the whistle of the head part is generated by the airflow generated when the head part is rotated vigorously. The fifth feature is that it is set to ring. In addition to the fifth characteristic, the swing training tool of the present invention has a sixth characteristic that the whistle sounds in the grip portion and the head portion are different. In addition, the swing training tool of the present invention is configured as a tubular shape or a ring shape as a whole so as to be detachably fitted to a bat or a golf club at a center hole portion thereof, and the tubular shape or ring-shaped main body. The seventh feature is that a whistle that is blown by the air flow is installed in the.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a swing practice tool of the present invention will be further described with reference to the following drawings.
1A and 1B show a first embodiment of a swing training device of the present invention, FIG. 1A is an overall perspective view, and FIG. 1B is a sectional view of a main part. FIG. 2 is a diagram for explaining a preferable swing trajectory of a golf swing, and FIG. 3 is a diagram for explaining a swing motion when the swing training device according to the first embodiment of the present invention is used for golf. FIG. 4 shows a modified example of the first embodiment of the present invention, and (A), (B), and (C) are partial cross-sectional views showing the essential parts of a swing practice tool for golf. FIG. 5 shows a second embodiment of the swing training tool of the present invention,
(A) is an overall view and (B) is a cross-sectional view of a main part. FIG. 6 shows a third embodiment of the swing training tool of the present invention,
(A) is an external view and (B) is a sectional view. FIG. 7 shows a modified example of the third embodiment of the present invention, and is an external view showing a state in which a swing training tool is attached to a golf club, and FIG. 8 is FIG.
FIG. 3 is a detailed view of the swing training device shown in FIG. 9A and 9B show a fourth embodiment of a swing training device of the present invention, FIG. 9A is an external view of a swing training device for golf, and FIG. 9B is an external view of a swing training device for baseball and softball. . FIG. 10 is an external view showing a fifth embodiment of the swing training device of the present invention.

First, the first embodiment shown in FIG. 1 will be described. Reference numeral 10 is a grip portion of the swing training tool, 20 is a shaft portion, and 30 is a head portion. The head portion 30
A hollow portion 31 is formed inside, and the hollow portion 31 is filled with a content 32 made of small granular solid in a semi-filled state.
The contents 32 may be a sandy solid. Further, the content 32 may be a liquid such as water. The half-filled state is
As a broad concept, it means that the hollow portion 31 is not filled with the contents 32. However, half or a little less is actually preferable. This is because the head portion 30 has the meaning of the present invention in that it has a role as if it were a maraca of a musical instrument by combining the hollow portion 31 and the contents 32. In the first embodiment, both the grip portion 10 and the shaft portion 20 have the same shape and size as a golf club, and the head portion 30 has a shape similar to the head portion of a golf club, so that swing practice is possible. The shape, size, weight, and balance of the equipment are generally close to those of a golf club.
The shape of the head portion 30 does not have to be the same as the head portion of a real golf club, and may be a head portion that is simply bulged at the tip of the shaft portion 20 or a head portion having another shape. However, it is a condition that the hollow part and the above contents are put in the hollow part in the head part.

With reference to FIG. 2 and FIG. 3 as well, the operation in the case of performing golf swing practice using the above swing practice tool will be described. Generally, a golf swing starts from an address (A) state, backswing (B), top swing (T),
It consists of a series of actions including downswing (D), impact (I), and follow throw (F). The backswing (B) is generally performed by moving the shoulder, the arm, and the club integrally, and therefore a relatively large arc is drawn. On the other hand, down swing (D) following top swing (T)
In FIG. 3, it is preferable that the shaft section 20 is swung so as to be pulled down while standing up, as shown in FIG. Then, by returning the grip portion 10 to the position of the address (A) from the downswing (D) to the impact (I), the head portion 30 rapidly rotates and gives a strong impact to the golf ball.

The respective positions of the swing practice tool in a preferable swing are the positions shown in FIG. Here, from the vicinity of the top swing (T) position to the downswing (D) position, the tip of the head portion 30 is in the upward direction, and in the preferable downswing, the shaft portion 20 is pulled down while standing upright. Therefore, at the time of this downswing (D), a large centrifugal force is not yet applied to the golf club. Therefore, in the preferable downswing state, the content 32 in the hollow portion 31 of the head portion 30 is arranged on the shaft portion 20 side in the hollow portion 31 because gravity exceeds centrifugal force. The transition position (E) from the downswing (D) to the impact (I)
At, the grip portion 10 is returned, so that the head portion 30 rapidly rotates and a strong centrifugal force is generated. Therefore, at this time, the content 32 suddenly moves from the shaft portion 20 side to the tip side in the hollow portion 31, collides with the inner wall on the tip side,
Make a sound. This effect is similar to that in the musical instrument maracas. That is, if the contents 32 do not move vigorously at a stretch, no clear sound is produced.

When the practitioner is still unable to perform a good swing, the downswing (D) in which the shaft portion 20 is pulled down while standing upright from the top swing (T) cannot be performed well, It is easy to fall into a swing without tightening the sides like a hammer swing. In this case, the contents 32 inside the hollow portion 31 of the head portion 30 are hollowed out quickly and slowly with little noise by the centrifugal force of the hammer swing following the top swing (T). It moves to the tip side in the portion 31. As a result, Impact (I)
Even if you reach the position, you will end the swing without making any distinct sound. That is, according to the swing training tool of the present invention, the downswing (D) with a tighter form than the topswing (T)
There is no "sound" when the club is swung down, unless it is moved from to impact (I). Therefore, the practitioner can acquire a preferable form by correcting the swing motion so that a "sound" is produced when the club is swung down.

4 (A), (B), and (C) show modified examples of the first embodiment of the present invention. As the swing training tool for golf, the above grip portion 10 and shaft portion are used. Not only 20 but also the head portion 30 does not appear to be an ordinary golf club in appearance. That is, in FIG. 4A, the head portion 30 of the swing training tool is configured similarly to the head portion of an iron of a normal golf club, and the hollow portion 31 is provided inside the head portion 30. The contents 32 are put in the hollow portion 31 in a partially filled state. This makes it possible to perform swing practice assuming that an iron club is used. In addition, in FIG. 4B, the head portion 30 is a wood (driver) of an ordinary golf club.
It is configured in the same manner as. Inside the head portion 30, a hollow portion 31 in which a content 32 is put in a partially filled state is provided. This makes it possible to practice swings assuming that a wood club is used. As described above, when the head portion 30 is configured in the same manner as the golf club together with the grip portion 10 and the shaft portion 20, it is possible to practice swing practice as if the player were swinging with a real golf club. . Further, by using a swing training tool similar to that of such a golf club, it is possible to actually go out on the course and enjoy the play, even if the play is not official. In this case, it can be said that the swing practice tool is a golf club. The present invention also includes a swing training tool as such a golf club in its category.

When the swing training tool of the present invention is used as a golf club for playing, the contents 3 in the hollow portion 31 at the time of impact of the golf ball by the head portion 30.
2 can further enhance the impact. That is,
When the head portion 30 hits a golf ball on its face surface, the content 32 in the hollow portion 31 collides with the inner wall on the face surface side in the hollow portion 31 due to inertia, which causes a secondary impact. Give to a golf ball. This increases the flight distance of the golf ball. In order to increase the secondary impact, the weight of the entire content may be made heavier, for example, by using the content 32 as a metal ball having a large specific gravity.

As in the case of FIG. 4 (B), FIG. 4 (C) shows the head 30 of the swing training tool constructed in the same manner as the head of the wood (driver) of the golf club. However, here, the position of the hollow portion 31 in the head portion 30 is provided at a higher position than in the case of FIG.
By thus changing the position of the hollow portion 31 up and down, the position of the secondary impact applied to the golf ball by the content 32 colliding with the inner wall of the hollow portion 31 can be changed. This makes it possible to adjust the flight angle of the golf ball.

FIG. 5 shows a second embodiment of the swing training tool of the present invention. The swing training tool according to this embodiment,
It has a grip portion 100 similar to the grip of a bat, a shaft portion 200 similar to the trunk of the bat, and a head portion 300 similar to the head of the bat, and is configured like a baseball or softball bat as a whole. . A hollow portion 310 is formed inside the head portion 300, and the hollow portion 310 is formed.
The contents 320 consisting of small granular solids are placed in a semi-filled state. The contents 320 may be a sandy solid or a liquid such as water. Even in the case of the bat swing, there is a common point with the golf swing, and from the top position (the position where the bat is held), the bat (the shaft portion 2
00) standing down and pulling down, and then returning the grip (grip part 100) and rotating the bat (head part 300), thereby giving a strong impact to the ball. Has been done. By performing such preferable downswing and subsequent return of the grip, at the transition position from the downswing to the impact, the head part 300 of the bat is obtained.
Rotates rapidly and generates a strong centrifugal force. Therefore, at this time, the contents 320 move inside the hollow portion 310 and the shaft portion 200.
From the side to the tip side, it collides with the inner wall on the tip side and makes a sound. In a swing such as a hammer swing performed without tightening the sides, the content 320 gradually shifts from the initial stage of the swing to the tip side inside the hollow portion 31, and a clear sound is produced even when the position near the impact is reached. Never emit. The practitioner can acquire a preferable bat swing and can check the swing by practicing so that the swing can be clearly heard near the impact. The training tool for bat swing may have a thin grip portion and a thin shaft portion like a golf club. However, the head portion must be concentric with the tip of the shaft portion and the axis of the shaft portion. A golf head that is eccentric to the shaft portion is useless.

FIGS. 6A and 6B show a third embodiment of the swing training device of the present invention. This embodiment is a simple swing training tool, which is detachably fitted to a bat and used when practicing a bat swing in a waiting circle or other places. The whole body has a cylindrical shape or a ring shape, and a main body 40 thereof is provided with a central hole portion 43 for mounting in the vicinity of the head portion 300 of the bat, and a hollow portion 41 is formed inside the main body 40. The hollow portion 41 has a content 42 made of a liquid such as water.
Is half full. The contents 42 may be a sandy or small granular solid. Further, the main body 40 has a hollow portion 41
It is possible to provide an input port 44 with a cap through which the contents 42 can be put in and taken out. Input port 4
By providing 4, contents 42 such as water when necessary
, And the contents 42 can be removed when unnecessary. Further, the weight of the bat can be adjusted by adjusting the amount of the contents 42. According to the simple swing training tool of the present embodiment, when the bat swing is performed by detachably fitting the swing training tool in the vicinity of the head portion 300 of the bat, the same as in the case of the second embodiment described in FIG. 5 above. Similarly, a sound is produced at a position near the impact when a desirable swing is made.
Therefore, the practitioner can correct his own swing to a preferable swing and check his own swing.

FIGS. 7 and 8 show a modification of the simple swing training device which is the third embodiment of the present invention described in FIG. That is, the present embodiment is a simple swing training tool which is detachably attached to a golf club so that the player can practice swinging. As shown in FIG. 7, the tip of the shaft portion 20 and the head portion 30 of the golf club are shown in FIG. Attach it near the base of the. Similar to the one shown in FIG. 6, a cylindrical or ring-shaped main body 40 is provided with a hollow portion (not shown) inside, and the hollow portion is filled with a content (not shown) made of a liquid such as water to a half-filled state. I have it. Further, a center hole portion 43 for mounting on a golf club is provided.
The main body 40 is provided with, for example, a fastening piece 44 and a fastening ring 45 shown in FIG. 8 as means for fastening the body passed through the golf club to the shaft portion 20 in a fixed state so as not to move. The tightening piece 44
Is a radial direction (X direction) from the periphery with respect to the shaft portion 20 in which a plurality of pieces (four pieces in the drawing) are passed through the central hole portion 43.
It is configured to move forward and backward. The contact portion 44a of the tightening piece 44 with respect to the shaft portion 20 is made of rubber, so that the tightening can be ensured. Reference numeral 46 denotes a mounting stopper for the fastening piece 44. The tightening ring 44 is fixed on the main body 40 by moving the tightening ring 45 in the axial direction (Y direction) while pressing the tightening piece 44 from around the inserted shaft portion 20. The means for fastening the main body 40 to the shaft portion 20 in a fixed state so as not to move is not limited to the fastening piece 44 or the fastening ring 45.

In addition, the hollow portion (31, 310) and the contents (32, 320) are connected to the head portion (30, 30).
It is also possible to provide it in the grip part (10, 100) in addition to 0). In this case, when a correct golf swing or bat swing is performed, a collision sound due to the contents (32, 320) sounds at the grip (10, 100) during the downswing, and the head ( 30, 300) contents (32, 32)
It is also possible to make a collision sound due to 0).

FIG. 9 shows a fourth embodiment of the swing training tool of the present invention. (A) shows the swing practice tool as a swing practice tool for golf, which has a grip portion 10, a shaft portion 20, and a head portion 30, and is a golf club-shaped swing exercise tool body as a whole. Grip part 1
The whistle 51 and 52 are provided on the 0 and the head unit 30, respectively. Further, (B) is a swing training tool for baseball and softball, and includes a grip portion 100 and a shaft portion 20.
The whistle 51 and 52 are provided in the grip portion 100 and the head portion 300, respectively, with respect to the main body of the swing training tool having 0 and the head portion 300 and having the entire shape of a bat.
The whistles 51, 52 are configured to sound as an air stream passes through them. The whistle 51, 52 can be installed inside the grip portion 10, 100 and inside the head portion 30, 300, respectively.

When swinging a golf club-shaped or bat-shaped swing training tool in which the whistle 51 is provided in the grip portions 10, 100, the grip portions 1 are kept downward by the downswing while the grip tips 10a, 100a are facing downward.
Grip tip 1 when 0, 100 is moved down vigorously
A sound is produced by the air flow coming in from 0a and 100a and passing through the whistle 51. For example, an opening 61a is provided in the grip tips 10a and 100a to form an air passage 61 in the grips 10 and 100, and a whistle 51 is provided in the middle of the air passage 61, and the air flow passing through the whistle 51 is further opened. The structure may be such that it flows out from 61b to the outside. The whistle 51 sounds in the grip 1
Preliminary adjustment is made so that it is performed only when the grip tips 10a and 100a of 0 and 100 are vigorously moved downward while maintaining the downward posture.

On the other hand, the whistle 5 is placed inside the head portions 30 and 300.
When swinging a swing training tool in the shape of a golf club or bat in which 2 is provided, the head portions 30, 300
The sound is generated by the air flow generated when the gyro rotates rapidly. For example, in the case of a golf club-shaped swing training tool, openings 62a and 62b are formed in the head portion 30.
Is provided to form an air passage 62 penetrating in the rotation direction of the swing, and the whistle 52 is arranged in the middle of the air passage 62. Further, a whistle 52 oriented so as to allow the airflow to pass in the rotation direction of the swing may be fixed to a part of the outside of the head unit 30. In the case of a bat-shaped swing training tool, for example, the head portion 3
00 to form an air passage 62 in the head part 300 by providing an opening 62a on the side surface thereof, and a whistle 52 is provided in the middle of the air passage 62.
Can be arranged. The air flow passing through the whistle 52 is allowed to flow out of the bat again from the other side surface 62b of the head portion 300 or the tip of the head portion 300. Opening 6 provided on the side surface of the head unit 300
A plurality of air inlets 2a may be provided around the head portion 300. A plurality of whistles 52 provided on the head portion 300 of the bat can be provided around the head portion 300 so that the bat may be held in any manner.

As described above, the whistles 51 and 52 are provided on the grips 10 and 100 and the heads 30 and 300, respectively, so that when the downswing is preferably performed in the practice of the swing, an appropriate air flow is obtained. The whistle 51 sounds as it passes the whistle 51. And the head portions 30, 30
If the 0 is vigorously rotated by following the preferred downswing, then a suitable air stream will flow to the whistle 52 and sound. If the downswing is not performed favorably, the whistle 51 does not sound well. In addition, the head part 3
The whistle 52 does not sound well even when 0 and 300 do not turn vigorously.

The sound of the whistle 51 provided on the grips 10, 100 and the whistle 52 provided on the heads 30, 300.
It is possible to make the sounds different from each other by changing the generated tones and the like. By changing the sound,
You can easily know which part of the swing is bad.

FIG. 10 shows a swing practice tool according to a fifth embodiment of the present invention. This embodiment is a simple swing practice tool similar to that described with reference to FIG. 6, and is used by being detachably fitted to a bat when practicing a bat swing in a waiting circle or other places. is there.
A central hole portion 4 for mounting in the vicinity of the head portion 300 of the bat on a main body 40 which is entirely tubular or ring-shaped.
3, a whistle 53 is provided on the main body 40. It is possible to provide the main body 40 with one or a plurality of air passages 63 penetrating in the horizontal direction through the openings 63a and 63b provided in the main body 40, and to arrange the whistle 53 in the middle of the air passages 63. Further, one or more whistles 53 may be attached to the outer surface of the main body 40 so that the air flow can pass in the horizontal direction. By attaching the simple type swing practice tool configured as described above to a bat to practice swing, the fixed type whistle shown in FIG. 9B is added to the whistle 53 of the simple type swing practice tool. The same effect as in the case of 52 can be expected. Of course, the simple swing practice tool as shown in FIG. 10 can be used for the grip part 100 of the bat by appropriately changing the size and shape. In this case, the shape of the main body 40 is configured to be detachably fixed to the grip portion 100, and the whistle 53 is positioned so that the direction of the air flow passing through the whistle is the same as the axial direction of the grip portion 100. It may be arranged with respect to the main body 40 so as to be oriented (so as to perform the same action as the whistle 51 of FIG. 9B). Further, a simple swing practice tool may be similarly configured for a golf club. When used for a golf club, the shape of the main body 40 shown in FIG.
The shape and mechanism are modified so that they can be detachably fixed in the vicinity, and the whistle 53 is positioned so that the air flow passing through the whistle is in the same direction as the golf swing (see (A) in FIG. 9). The same as the whistle 52), the main body 4
It should be deployed for 0. When the grip portion 10 of the golf club is used, the shape and mechanism of the main body 40 can be removably fixed to the grip portion 10 of the golf club, and the whistle 53 has its posture to pass through the whistle. It may be arranged on the main body 40 so that the generated air flow is in the same direction as the axial direction of the grip portion 10 (so as to perform the same operation as the whistle 51 of FIG. 9A).

[0024]

According to the swing training tool of the present invention, the swing training tool according to the present invention has a grip portion, a shaft portion, and a head portion, and is suitable for swinging in golf, baseball, and softball. A swing exercise tool for practicing, in which a hollow part is formed inside the head part, and a liquid such as water or a sand-like or small granular particulate solid is put in a semi-filled state in the hollow part. Using a swing training tool, you can master the correct swing in golf, baseball, and softball while listening to the sound and the position of the sound when swinging. In addition, the user can check his / her swing while listening to the sound and the position where the sound is generated during the swing. According to the swing training tool of claim 2, in addition to the effect of the configuration of claim 1, the swing training tool is entirely formed like a golf club for a golf swing, and is formed inside the head of the golf club. Since liquid such as water or sandy or small granular particulate solid is put in a semi-filled state in the configured hollow part, with the same feel as a golf club, the presence or absence of sound when swinging, the position of occurrence You can correct the golf swing or check your own swing while checking, and it can be used as an actual golf club even if it can not be used for formal play, so you can go out on the course and play. It is also possible to fix the form while doing so. When used as an actual golf club, in addition to the impact on the face surface, a secondary impact due to the liquid or solid contained in the hollow portion can be expected. According to the swing training tool described in claim 3, in addition to the effect obtained by the configuration described in claim 1, the whole is formed like a baseball or softball bat for bat swing, and the bat head is used. Liquid such as water or sand-like or small granular particulate solid is put in a semi-filled state in the hollow part configured in the vicinity, so it feels the same as a bat used for baseball or softball, and when swinging It is possible to correct the bat swing and check one's own swing while confirming whether or not the sound is generated and the generation position. Although it can be used as an actual bat even if it cannot be used in a formal game, it is also possible to correct the batting form while using it in a practice game or the like. Further, when used as an actual bat, when the ball is hit, a secondary impact due to the liquid or solid contained in the hollow portion can be expected. Further, according to the swing training tool of claim 4, the whole is formed into a tubular shape or a ring shape, and is configured to be detachably fitted to a bat or a golf club at a center hole portion thereof, and the tubular shape. Alternatively, since a hollow part is formed inside the ring-shaped main body and a liquid such as water or a sand-like or small particle-like solid is put in a semi-filled state in the hollow part, it is suitable for a baseball bat or a golf club. Golf, baseball,
You can master the correct swing of a softball while listening to the sound of the swing and the position where it occurs. You can also check your swing. Further, according to the swing training tool of claim 5, the swing training tool has a grip portion, a shaft portion, and a head portion, and is for practicing swings in golf, baseball, and softball, wherein the grip portion and the head portion. The whistle that is squeezed by the air flow is installed in the, and the whistle of the grip part is struck by the air flow generated when the grip part is moved down vigorously by the downswing, and the air flow generated when the head part is rotated by the Since the whistle of the head part is made to sound, while checking whether each whistle arranged in the grip part and the head part sounds or listening to the sound of each whistle, golf, baseball, softball You can master the correct swing in.
Also, the user can check his / her swing while listening to the sounds of two whistles during the swing. Further, according to the swing training device of claim 6, in addition to the effect of the configuration of claim 5, the sound of the whistle in the grip part and the head part is made different, so whether or not the downswing is good or bad in the swing practice. The confirmation and the quality of the rotation of the head portion leading to the impact can be easily discriminated by different sounds. Further, according to the swing training tool of claim 7, the whole is formed into a tubular shape or a ring shape, and is configured to be detachably fitted to a bat or a golf club at a central hole portion thereof, and the tubular shape. Alternatively, a whistle that sounds by airflow is provided on the ring-shaped body, so by attaching it to a baseball bat or a golf club in a detachable manner, the correct swing in golf, baseball, and softball can be obtained by using the whistle sound when swinging. You can easily master while listening to. You can also check your swing.

[Brief description of drawings]

1A and 1B show a first embodiment of a swing training device of the present invention, FIG. 1A is an overall perspective view, and FIG. 1B is a sectional view of a main part.

FIG. 2 is a diagram illustrating a preferable swing trajectory of a golf swing.

FIG. 3 is a diagram illustrating a swing motion when the swing training tool according to the first embodiment of the present invention is used for golf.

FIG. 4 shows a modification of the first embodiment of the present invention,
(A), (B), (C) is a partial sectional view showing a main part of a swing practice tool for golf.

5A and 5B show a second embodiment of a swing training tool of the present invention, FIG. 5A is an overall view, and FIG. 5B is a sectional view of a main part.

FIG. 6 shows a third embodiment of the swing training tool of the present invention, (A) is an external view, and (B) is a sectional view.

FIG. 7 is an external view showing a modified example of the third embodiment of the present invention, showing a state where the swing practice tool is attached to the golf club.

8 is a detailed view of the swing training device shown in FIG.

FIG. 9 shows a fourth embodiment of the swing training device of the present invention, (A) is an external view of the swing training device for golf,
(B) is an external view of a swing practice tool for baseball and softball.

FIG. 10 is an external view showing a fifth embodiment of the swing training tool of the present invention.

[Explanation of symbols]

10, 100 Grip part 20, 200 Shaft part 30, 300 Head part 31, 310 Hollow part 32, 320 Contents 40 Main body 41 Hollow part 42 Contents 43 Center hole part 44 Input port 44 Tightening piece 45 Tightening rings 51, 52, 53 Whistle 61, 62, 63 Air passage 61a, 61b, 62a, 62b, 63a, 63b Opening

Claims (7)

[Claims] 1. A swing training tool having a grip portion, a shaft portion and a head portion for practicing swings in golf, baseball and softball, wherein a hollow portion is formed inside the head portion and the hollow portion is formed. A swing exercise tool characterized in that a liquid such as water or a sand-like or small-grained particulate solid is put in a partially filled state. 2. A golf club, which is entirely formed like a golf club and has a hollow portion formed inside the head of the golf club, which is partially filled with a liquid such as water or a sand-like or small granular particulate solid. The swing training tool according to claim 1, wherein the swing training tool is included in the swing training tool. 3. A liquid such as water or a sand-like or small granular particulate solid formed in a hollow portion formed inside a baseball or a softball bat for use in a bat swing and near the head of the bat. The swing training tool according to claim 1, wherein the swing training tool is put in a half-filled state. 4. A cylindrical or ring-shaped body as a whole, which is configured to be removably fitted to a bat or a golf club at its center hole portion, and is provided inside the cylindrical or ring-shaped main body. A swing practice tool comprising a hollow portion, and a liquid such as water or a sandy or small granular particulate solid is put in the hollow portion in a semi-filled state. 5. A swing training tool having a grip portion, a shaft portion, and a head portion, for practicing swings in golf, baseball, and softball, wherein a whistle that is blown by airflow is provided in the grip portion and the head portion. , The whistle of the grip portion is struck by the airflow generated when the grip portion is vigorously moved downward by the downswing, and the whistle of the head portion is squealed by the airflow generated when the head portion is rotated vigorously. A swing practice tool that is characterized by being. 6. The swing training device according to claim 5, wherein the whistle sounds at the grip portion and the head portion are different. 7. A tubular or ring-shaped body as a whole, which is configured to be detachably fitted to a bat or a golf club at a central hole portion thereof, and which is formed in the tubular or ring-shaped main body by an air flow. A swing practice tool characterized by having a whistle that rings.